def main(argv):
rawrefcount.create_link_pypy(w1, ob1)
w = None
ob = lltype.nullptr(PyObjectS)
oblist = []
for op in argv[1:]:
revdb.stop_point()
w = W_Root(42)
ob = lltype.malloc(PyObjectS, flavor='raw', zero=True)
ob.c_ob_refcnt = rawrefcount.REFCNT_FROM_PYPY
rawrefcount.create_link_pypy(w, ob)
oblist.append(ob)
del oblist[-1]
#
rgc.collect()
assert rawrefcount.from_obj(PyObject, w) == ob
assert rawrefcount.to_obj(W_Root, ob) == w
while True:
ob = rawrefcount.next_dead(PyObject)
if not ob:
break
assert ob in oblist
oblist.remove(ob)
objectmodel.keepalive_until_here(w)
revdb.stop_point()
return 9
def entry_point(argv):
rawrefcount.create_link_pypy(prebuilt_p, prebuilt_ob)
prebuilt_ob.c_ob_refcnt += REFCNT_FROM_PYPY
oblist = [make_ob() for i in range(50)]
rgc.collect()
deadlist = []
while True:
ob = rawrefcount.next_dead(PyObject)
if not ob: break
if ob.c_ob_refcnt != 1:
print "next_dead().ob_refcnt != 1"
return 1
deadlist.append(ob)
if len(deadlist) == 0:
print "no dead object"
return 1
if len(deadlist) < 30:
print "not enough dead objects"
return 1
for ob in deadlist:
if ob not in oblist:
print "unexpected value for dead pointer"
return 1
oblist.remove(ob)
print "OK!"
lltype.free(ob, flavor='raw')
return 0
def make_p():
p = W_Root(42)
ob = lltype.malloc(PyObjectS, flavor='raw', zero=True)
rawrefcount.create_link_pypy(p, ob)
ob.c_ob_refcnt += REFCNT_FROM_PYPY
assert rawrefcount.from_obj(PyObject, p) == ob
assert rawrefcount.to_obj(W_Root, ob) == p
return ob, p
def make_p():
p = W_Root(42)
ob = lltype.malloc(PyObjectS, flavor='raw', zero=True)
rawrefcount.create_link_pypy(p, ob)
ob.c_ob_refcnt += REFCNT_FROM_PYPY
assert rawrefcount.from_obj(PyObject, p) == ob
assert rawrefcount.to_obj(W_Root, ob) == p
return ob, p
def test_create_link_pypy(self):
p = W_Root(42)
ob = lltype.malloc(PyObjectS, flavor='raw', zero=True)
assert rawrefcount.from_obj(PyObject, p) == lltype.nullptr(PyObjectS)
assert rawrefcount.to_obj(W_Root, ob) == None
rawrefcount.create_link_pypy(p, ob)
assert ob.c_ob_refcnt == 0
ob.c_ob_refcnt += REFCNT_FROM_PYPY_LIGHT
assert rawrefcount.from_obj(PyObject, p) == ob
assert rawrefcount.to_obj(W_Root, ob) == p
lltype.free(ob, flavor='raw')
def test_create_link_pypy(self):
p = W_Root(42)
ob = lltype.malloc(PyObjectS, flavor='raw', zero=True)
assert rawrefcount.from_obj(PyObject, p) == lltype.nullptr(PyObjectS)
assert rawrefcount.to_obj(W_Root, ob) == None
rawrefcount.create_link_pypy(p, ob)
assert ob.c_ob_refcnt == 0
ob.c_ob_refcnt += REFCNT_FROM_PYPY_LIGHT
assert rawrefcount.from_obj(PyObject, p) == ob
assert rawrefcount.to_obj(W_Root, ob) == p
lltype.free(ob, flavor='raw')
def track_reference(space, py_obj, w_obj):
"""
Ties together a PyObject and an interpreter object.
The PyObject's refcnt is increased by REFCNT_FROM_PYPY.
The reference in 'py_obj' is not stolen! Remember to Py_DecRef()
it is you need to.
"""
# XXX looks like a PyObject_GC_TRACK
assert py_obj.c_ob_refcnt < rawrefcount.REFCNT_FROM_PYPY
py_obj.c_ob_refcnt += rawrefcount.REFCNT_FROM_PYPY
rawrefcount.create_link_pypy(w_obj, py_obj)
def track_reference(space, py_obj, w_obj):
"""
Ties together a PyObject and an interpreter object.
The PyObject's refcnt is increased by REFCNT_FROM_PYPY.
The reference in 'py_obj' is not stolen! Remember to Py_DecRef()
it is you need to.
"""
# XXX looks like a PyObject_GC_TRACK
assert py_obj.c_ob_refcnt < rawrefcount.REFCNT_FROM_PYPY
py_obj.c_ob_refcnt += rawrefcount.REFCNT_FROM_PYPY
rawrefcount.create_link_pypy(w_obj, py_obj)
def test_collect_p_dies(self):
p = W_Root(42)
ob = lltype.malloc(PyObjectS, flavor='raw', zero=True)
rawrefcount.create_link_pypy(p, ob)
ob.c_ob_refcnt += REFCNT_FROM_PYPY_LIGHT
assert rawrefcount._p_list == [ob]
wr_ob = weakref.ref(ob)
wr_p = weakref.ref(p)
del ob, p
rawrefcount._collect()
assert rawrefcount._p_list == []
assert wr_ob() is None
assert wr_p() is None
def test_collect_p_dies(self):
p = W_Root(42)
ob = lltype.malloc(PyObjectS, flavor='raw', zero=True)
rawrefcount.create_link_pypy(p, ob)
ob.c_ob_refcnt += REFCNT_FROM_PYPY_LIGHT
assert rawrefcount._p_list == [ob]
wr_ob = weakref.ref(ob)
wr_p = weakref.ref(p)
del ob, p
rawrefcount._collect()
assert rawrefcount._p_list == []
assert wr_ob() is None
assert wr_p() is None
def test_collect_p_keepalive_w_root(self):
p = W_Root(42)
ob = lltype.malloc(PyObjectS, flavor='raw', zero=True)
rawrefcount.create_link_pypy(p, ob)
ob.c_ob_refcnt += REFCNT_FROM_PYPY_LIGHT
assert rawrefcount._p_list == [ob]
wr_ob = weakref.ref(ob)
del ob # p remains
rawrefcount._collect()
ob = wr_ob()
assert ob is not None
assert rawrefcount._p_list == [ob]
assert rawrefcount.to_obj(W_Root, ob) == p
assert rawrefcount.from_obj(PyObject, p) == ob
lltype.free(ob, flavor='raw')
def test_collect_p_keepalive_w_root(self):
p = W_Root(42)
ob = lltype.malloc(PyObjectS, flavor='raw', zero=True)
rawrefcount.create_link_pypy(p, ob)
ob.c_ob_refcnt += REFCNT_FROM_PYPY_LIGHT
assert rawrefcount._p_list == [ob]
wr_ob = weakref.ref(ob)
del ob # p remains
rawrefcount._collect()
ob = wr_ob()
assert ob is not None
assert rawrefcount._p_list == [ob]
assert rawrefcount.to_obj(W_Root, ob) == p
assert rawrefcount.from_obj(PyObject, p) == ob
lltype.free(ob, flavor='raw')
def test_collect_s_keepalive_pyobject(self):
p = W_Root(42)
ob = lltype.malloc(PyObjectS, flavor='raw', zero=True)
p.pyobj = ob
rawrefcount.create_link_pypy(p, ob)
ob.c_ob_refcnt += REFCNT_FROM_PYPY
assert rawrefcount._p_list == [ob]
wr_ob = weakref.ref(ob)
wr_p = weakref.ref(p)
ob.c_ob_refcnt += 1 # <=
del ob, p
rawrefcount._collect()
ob = wr_ob()
p = wr_p()
assert ob is not None and p is not None
assert rawrefcount._p_list == [ob]
assert rawrefcount.to_obj(W_Root, ob) == p
lltype.free(ob, flavor='raw')
def test_collect_s_keepalive_pyobject(self):
p = W_Root(42)
ob = lltype.malloc(PyObjectS, flavor='raw', zero=True)
p.pyobj = ob
rawrefcount.create_link_pypy(p, ob)
ob.c_ob_refcnt += REFCNT_FROM_PYPY
assert rawrefcount._p_list == [ob]
wr_ob = weakref.ref(ob)
wr_p = weakref.ref(p)
ob.c_ob_refcnt += 1 # <=
del ob, p
rawrefcount._collect()
ob = wr_ob()
p = wr_p()
assert ob is not None and p is not None
assert rawrefcount._p_list == [ob]
assert rawrefcount.to_obj(W_Root, ob) == p
lltype.free(ob, flavor='raw')
def test_collect_s_dies(self):
trigger = []; rawrefcount.init(lambda: trigger.append(1))
p = W_Root(42)
ob = lltype.malloc(PyObjectS, flavor='raw', zero=True)
rawrefcount.create_link_pypy(p, ob)
ob.c_ob_refcnt += REFCNT_FROM_PYPY
assert rawrefcount._p_list == [ob]
wr_ob = weakref.ref(ob)
wr_p = weakref.ref(p)
del ob, p
rawrefcount._collect()
ob = wr_ob()
assert ob is not None
assert trigger == [1]
assert rawrefcount._d_list == [ob]
assert rawrefcount._p_list == []
assert wr_p() is None
assert ob.c_ob_refcnt == 1 # from _d_list
assert ob.c_ob_pypy_link == 0
lltype.free(ob, flavor='raw')
def test_collect_s_dies(self):
trigger = []
rawrefcount.init(lambda: trigger.append(1))
p = W_Root(42)
ob = lltype.malloc(PyObjectS, flavor='raw', zero=True)
rawrefcount.create_link_pypy(p, ob)
ob.c_ob_refcnt += REFCNT_FROM_PYPY
assert rawrefcount._p_list == [ob]
wr_ob = weakref.ref(ob)
wr_p = weakref.ref(p)
del ob, p
rawrefcount._collect()
ob = wr_ob()
assert ob is not None
assert trigger == [1]
assert rawrefcount._d_list == [ob]
assert rawrefcount._p_list == []
assert wr_p() is None
assert ob.c_ob_refcnt == 1 # from _d_list
assert ob.c_ob_pypy_link == 0
lltype.free(ob, flavor='raw')
def _cpyext_attach_pyobj(self, space, py_obj):
self._cpy_ref = py_obj
rawrefcount.create_link_pypy(self, py_obj)
def w_root_attach_pyobj(w_obj, space, py_obj):
from rpython.rlib.debug import check_annotation
check_annotation(space.config.objspace.usemodules.cpyext, check_true)
assert space.config.objspace.usemodules.cpyext
# default implementation of _cpyext_attach_pyobj
rawrefcount.create_link_pypy(w_obj, py_obj)
